09750 IUPAC Gold Book - mass fingerprinting 10.1351/goldbook.09750 09750 current synonyms: mass mapping, peptide mass fingerprinting 1 Protein analysis where an unknown protein is chemically or enzymatically cleaved into peptide fragments whose masses are determined by mass spectrometry. The peptide masses are compared to peptide masses calculated for known proteins in a database and analysed statistically to determine the best match. PAC, 2018, 90, 1121. 'Terminology of bioanalytical methods (IUPAC Recommendations 2018)' on page 1157 (https://doi.org/10.1515/pac-2016-1120) https://goldbook.iupac.org/terms/view/09750/html https://goldbook.iupac.org/terms/view/09750/json https://goldbook.iupac.org/terms/view/09750/plain Citation: 'mass fingerprinting' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.09750 The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using. 2026-04-18T04:08:56+00:00